Patents by Inventor Ronald W. Gunkel

Ronald W. Gunkel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20020189780
    Abstract: A method of joining an aluminum cast member to an aluminum component. The method includes the steps of coating a surface of an aluminum component with flux comprising cesium fluoride, placing the flux coated component in a mold, filling the mold with molten aluminum alloy, and allowing the molten aluminum alloy to solidify thereby joining a cast member to the aluminum component. The flux preferably includes aluminum fluoride and alumina. A particularly preferred flux includes about 60 wt. % CsF, about 30 wt. % AlF3, and about 10 wt. % Al2O3.
    Type: Application
    Filed: January 19, 2001
    Publication date: December 19, 2002
    Inventors: Ronald W. Gunkel, Larry L. Podey, Thomas N. Meyer
  • Patent number: 6474397
    Abstract: A method of joining an aluminum cast member to an aluminum component. The method includes the steps of coating a surface of an aluminum component with flux comprising cesium fluoride, placing the flux coated component in a mold, filling the mold with molten aluminum alloy, and allowing the molten aluminum alloy to solidify thereby joining a cast member to the aluminum component. The flux preferably includes aluminum fluoride and alumina. A particularly preferred flux includes about 60 wt. % CsF, about 30 wt. % AlF3, and about 10 wt. % Al2O3.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: November 5, 2002
    Assignee: Alcoa Inc.
    Inventors: Ronald W. Gunkel, Larry L. Podey, Thomas N. Meyer
  • Patent number: 5669436
    Abstract: A composite metallurgical product includes a roll cast aluminum alloy core and a filler material bonded on the core. Assemblies joined by filler material are formed from this product by heating to flow the filler material into joints and subsequent solidification of the filler material in the joints. The composite product is made in several ways, including lamination at roll caster rolls, and lamination or thermal spraying at the exit side of a roll caster. The invention additionally provides for an angulation rolling method for varying percent of cladding on the composite, and a high-manganese aluminum alloy useful as core material in brazing sheet clad with aluminum-silicon brazing alloy.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 23, 1997
    Assignee: Aluminum Company of America
    Inventors: Kevin S. Papich, Ronald Bachowski, Stephen F. Baumann, Robert A. Cargnel, Gerald E. Carkin, Donald J. Clements, Ronald W. Gunkel, William H. Hoffman, Larry G. McKinney, A. Victor Pajerski, John J. Palko, Edward P. Patrick, Jr., Stephen J. Rennekamp, Philip C. Scheble, William R. Sharkins, Frank P. Swigon, William G. Truckner
  • Patent number: 5476725
    Abstract: A composite metallurgical product includes a roll cast aluminum alloy core and a filler material bonded on the core. Assemblies joined by filler material are formed from this product by heating to flow the filler material into joints and subsequent solidification of the filler material in the joints. The composite product is made in several ways, including lamination at roll caster rolls, and lamination or thermal spraying at the exit side of a roll caster. The invention additionally provides for an angulation rolling method for varying percent of cladding on the composite, and a high-manganese aluminum alloy useful as core material in brazing sheet clad with aluminum-silicon brazing alloy.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: December 19, 1995
    Assignee: Aluminum Company of America
    Inventors: Kevin S. Papich, Ronald Bachowski, Stephen F. Baumann, Robert A. Cargnel, Gerald E. Carkin, Donald J. Clements, Ronald W. Gunkel, William W. Hoffman, Larry G. McKinney, A. Victor Pajerski, John P. Palko, Edward P. Patrick, Jr., Stephen J. Rennekamp, Philip C. Scheble, William R. Sharkins, Frank P. Swigon, William G. Truckner
  • Patent number: 5058408
    Abstract: This invention provides a method of bulging at least a portion of a sidewall of a drawn or drawn and ironed aluminum container body. The method involves an initial thermal treatment step prior to bulging. The thermal treatment is provided to that portion of the sidewall of the container that is to be bulged and is sufficient to reduce the yield strength of that portion of the sidewall about 20% without substantially adversely affecting the yield strength of the bottom wall of the container. After thermal treatment, at least a portion of the thermally treated sidewall is bulged at a circumferential strain greater than about 5% to provide container shape.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: October 22, 1991
    Assignee: Aluminum Company of America
    Inventors: Charles J. Leftault, Jr., Ronald W. Gunkel, Robert A. Cargnel, E. Scott Douds
  • Patent number: 4947667
    Abstract: This invention provides a method for expanding at least a portion of a cylindrical sidewall of a generally cylindrically shaped, electrically responsive, metallic body. This method comprises the steps of retaining at least a first portion of the metallic body, disposing a coil of electrically conductive material inside the metallic body, and energizing the coil to create an electromagnetic force sufficient to expand at least a portion of the generally cylindrical sidewalls of the metallic body outwardly of the original generally cylindrical shape. During such expansion, a fluid is introduced between the coil and the inside surfaces of the container to maintain positive gauge pressure as the sidewalls expand. This invention also provides an apparatus for expanding at least a portion of a cylindrical sidewall of a generally cylindrically shaped, electrically responsive, metallic body.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: August 14, 1990
    Assignee: Aluminum Company of America
    Inventors: Ronald W. Gunkel, Robert A. Cargnel, James R. Morran, Edward P. Patrick
  • Patent number: 4629380
    Abstract: A preferably aluminum blind setting rivet including a detachable drill tip, preferably of steel, for self-drilling, the drill tip being attached to the rivet mandrel for drilling a hole to receive the rivet and being subsequently ejected from the mandrel during rivet setting.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: December 16, 1986
    Assignee: Aluminum Company of America
    Inventors: Ronald W. Gunkel, James R. Morran